@jschwart, I have the results of testing:
- Vodafone’s eSIM works with FP4 perfectly. Just buy an eSIM QR code on their website and follow the instructions.
- Kyivstar’s eSIM does not work with FP4 - the operator switches the physical SIM for eSIM, but it fails to install into the phone. After this, you have to recover the physical SIM according to the standard procedures. However, both replacement SIM->eSIM and the recovery with getting a new physical SIM in their support centres are free.
It appears that the distinction is by the phone’s chipset: Kyivstar does not support eSIM for any phone with a Qualcomm chipset.*
Based on this, I would expect that Lifecell should also work with Fairphone, as their eSIM support list includes all the phones supported by Vodafone. However, this has not been tested.
*Kyivstar does support Motorola Razr (of some year), which has a Qualcomm Snapdragon chipset. But not Razr 5G or any other Snapdragon-based phones. Probably, there is a chipset generation difference…
I have added this information to the Wiki post on FP4 eSIM support by various operators around the world: List of compatible and incompatible eSIM operators/networks for FP4 - Help / Guides - Fairphone Community Forum